From 5ba2bb0448a5ddf4018c7497229b4caddbd85bcf Mon Sep 17 00:00:00 2001
From: esigo <ehsan.sadroid@gmail.com>
Date: Sun, 18 Jul 2021 19:30:18 +0200
Subject: [PATCH 1/2] Add bazel build for grpc example

---
 WORKSPACE                |  2 ++
 examples/grpc/BUILD      | 60 ++++++++++++++++++++++++++++++++++++++++
 examples/grpc/client.cpp |  4 +++
 examples/grpc/server.cpp |  4 +++
 4 files changed, 70 insertions(+)
 create mode 100644 examples/grpc/BUILD

diff --git a/WORKSPACE b/WORKSPACE
index 1bd7b57c39..57358fb021 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -29,6 +29,8 @@ load("@com_github_grpc_grpc//bazel:grpc_extra_deps.bzl", "grpc_extra_deps")
 
 grpc_extra_deps()
 
+load("@com_github_grpc_grpc//bazel:cc_grpc_library.bzl", "cc_grpc_library")
+
 load("@upb//bazel:workspace_deps.bzl", "upb_deps")
 
 upb_deps()
diff --git a/examples/grpc/BUILD b/examples/grpc/BUILD
new file mode 100644
index 0000000000..f6469d5536
--- /dev/null
+++ b/examples/grpc/BUILD
@@ -0,0 +1,60 @@
+
+package(default_visibility = ["//visibility:public"])
+load("@rules_proto//proto:defs.bzl", "proto_library")
+load("@com_github_grpc_grpc//bazel:cc_grpc_library.bzl", "cc_grpc_library")
+
+proto_library(
+    name = "messages_proto",
+    srcs = ["protos/messages.proto"],
+)
+
+cc_proto_library(
+    name = "messages_cc_proto",
+    deps = [":messages_proto"],
+)
+
+cc_grpc_library(
+    name = "messages_cc_grpc",
+    srcs = [":messages_proto"],
+    grpc_only = True,
+    deps = [":messages_cc_proto"],
+)
+
+cc_library(
+    name = "tracer_common",
+    srcs = ["tracer_common.h"],
+    defines = ["BAZEL_BUILD"],
+    deps = [
+        "//exporters/ostream:ostream_span_exporter",
+    ],
+)
+
+cc_binary(
+    name = "client_grpc",
+    srcs = [
+        "client.cpp",
+    ],
+    defines = ["BAZEL_BUILD"],
+    deps = [
+        "@com_github_grpc_grpc//:grpc++",
+        "messages_cc_grpc",
+        ":tracer_common",
+        "//api",
+        "//sdk/src/trace",
+    ],
+)
+
+cc_binary(
+    name = "server_grpc",
+    srcs = [
+        "server.cpp",
+    ],
+    defines = ["BAZEL_BUILD"],
+    deps = [
+        "@com_github_grpc_grpc//:grpc++",
+        "messages_cc_grpc",
+        ":tracer_common",
+        "//api",
+        "//sdk/src/trace",
+    ],
+)
diff --git a/examples/grpc/client.cpp b/examples/grpc/client.cpp
index 719a62225b..472a933b98 100644
--- a/examples/grpc/client.cpp
+++ b/examples/grpc/client.cpp
@@ -2,7 +2,11 @@
 // ambiguity with `nostd::variant` if compiled with Visual Studio 2015. Other
 // modern compilers are unaffected.
 #include <grpcpp/grpcpp.h>
+#ifdef BAZEL_BUILD
+#include "examples/grpc/protos/messages.grpc.pb.h"
+#else
 #include "messages.grpc.pb.h"
+#endif
 
 #include "tracer_common.h"
 #include <iostream>
diff --git a/examples/grpc/server.cpp b/examples/grpc/server.cpp
index 167fc08966..6bbdfc64ba 100644
--- a/examples/grpc/server.cpp
+++ b/examples/grpc/server.cpp
@@ -1,4 +1,8 @@
+#ifdef BAZEL_BUILD
+#include "examples/grpc/protos/messages.grpc.pb.h"
+#else
 #include "messages.grpc.pb.h"
+#endif
 #include "tracer_common.h"
 #include "opentelemetry/trace/span_context_kv_iterable_view.h"
 

From 6d1544d8262421f73585897d727333cd0d76c9ce Mon Sep 17 00:00:00 2001
From: esigo <ehsan.sadroid@gmail.com>
Date: Sun, 18 Jul 2021 19:38:38 +0200
Subject: [PATCH 2/2] fix format

---
 WORKSPACE           | 1 -
 examples/grpc/BUILD | 6 +++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/WORKSPACE b/WORKSPACE
index 57358fb021..e44ca82ad4 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -30,7 +30,6 @@ load("@com_github_grpc_grpc//bazel:grpc_extra_deps.bzl", "grpc_extra_deps")
 grpc_extra_deps()
 
 load("@com_github_grpc_grpc//bazel:cc_grpc_library.bzl", "cc_grpc_library")
-
 load("@upb//bazel:workspace_deps.bzl", "upb_deps")
 
 upb_deps()
diff --git a/examples/grpc/BUILD b/examples/grpc/BUILD
index f6469d5536..2ac65c226c 100644
--- a/examples/grpc/BUILD
+++ b/examples/grpc/BUILD
@@ -1,5 +1,5 @@
-
 package(default_visibility = ["//visibility:public"])
+
 load("@rules_proto//proto:defs.bzl", "proto_library")
 load("@com_github_grpc_grpc//bazel:cc_grpc_library.bzl", "cc_grpc_library")
 
@@ -36,11 +36,11 @@ cc_binary(
     ],
     defines = ["BAZEL_BUILD"],
     deps = [
-        "@com_github_grpc_grpc//:grpc++",
         "messages_cc_grpc",
         ":tracer_common",
         "//api",
         "//sdk/src/trace",
+        "@com_github_grpc_grpc//:grpc++",
     ],
 )
 
@@ -51,10 +51,10 @@ cc_binary(
     ],
     defines = ["BAZEL_BUILD"],
     deps = [
-        "@com_github_grpc_grpc//:grpc++",
         "messages_cc_grpc",
         ":tracer_common",
         "//api",
         "//sdk/src/trace",
+        "@com_github_grpc_grpc//:grpc++",
     ],
 )